Building-block.



W. W. SMITH. BUILDING BLOCK.

APPLICATION FILED APR, 29, 191s.

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UNITED STATES PATENT oEEI'oE.

'WALTER SMITH, OF SHALLOW LAKE, .0NTARIO, CANADA.. I

BUILDING-BLOCK.

. p ecication of lettex's Patent. Patented )Ian 10, 1914.

l i 911ml .mea prima 191s. seriamoumazs.

To aZZ- whom it may fonce i.:

Be it known that I, yALTER lV. SMITH. of the village of Shallow Lake, in the Province of Ontario and Dominion of Canada, have invented certain new and useful Improvements in Building-Blocks, of which the following is a s ecification.

This invention re ates to building blocks adapted for manufacture in'terra cotta, clay, cement or the like7 and my object is to devise a block which is strong, which can he easily manufactured, which is readily usable in constructing walls of different thicknesses, and which will produce a wall well .adapted to resist lateral pressure.

I attain my object by forming the block lot' L-shape. in cross section and preferably hollow substantially as hereinafter more specifically describcdand illustrated in the accompanyingdrawings in which- Figure 1 is a. front elevation of my iniproved block. Fig. 2 across section and Figs. 3 to 7 end views showing luy blocks as used in various types of wall.

In the drai'vings like letters of reference indicate corresponding parts in the diilerent figures.

The bl'ock 1 is L-shaped in section as shown and is made of any convenient length. The arms of the L are of the saine dilnen. sions and each in width is substantially onehalf the width of the block` some small allowance being. made for mortar.

The block is grooved lengthwise as shown to enable the mortar used to interlock with the blocks, and thus give a wall strength to resist lateral thrusts.

.\s shown inFigs. 3, 4 and 5, well bonded walls of different thicknesses can he construt-.ted of thisblock without using headers. So too a backing of blocks can he applied to abriek facing as shown in Fig.I 6 and bonded thereto by means of headers as shown. The plastering can' then 'be done directly on the blocks saving the furrin and lathing necessary when a common tlirick backing is employedn7 on the face of the wall are used lengthw4 e, while in the center of the wall 'the bl s are laid across the wall, and where every other cross course of blocks requires to be only half the length of the adjoining courses as shown. The blocks will usually be formed hollow as shown and strengthened by means of the webs 2 which cross the internal sace in v Fig. 7 shows a heavywall where thebloeks e arms the wall thus possess ample strength to sus-A tain crushing stresses.

What I claim as my inventidnis: u A

1. A hollow buildin block Lshapecl in cross section and provi ed with an internal intermediate web in each arm ofthe ll.' of substantially double the thickness of the walls of the block, the arms of the L being of the saine dimensions and .eachj in width substantially half the width ofthe block.

2. A building block L-shapedjin cross section, the arms of 'the L being ofthe samedimensions and each in widthsubstantially. `haltthe Width of the block.

8. A hollow building block L-shaped in cross section, the arms of the'L bein of the same dimensions and each inwi. th substantially half the width of the hollow blockund provided with an internal intermediate web in each arm ofthe L, said websjeing each located substantially midway between' block which thc op osite outer sides of the it ararllels. t

ated at' Shallow Lake this 19th day of. April, A. D. 1913. I

' WALTER W. SMITH. Signed in the presence of l B. LAWSON,

ROBERT E. YOUNG. 

